The Problem

A commercial property in Phoenix, AZ (85032) contacted Cactus Plumbing and Air about a men’s restroom sink that had stopped draining. The issue was isolated to the second basin from the right, while the neighboring sinks continued to drain normally. Standing water in a public restroom is both a hygiene concern and a business disruption, so the call was treated as a priority.

Our Diagnosis

Because only one basin was affected, our technician was able to rule out a main line problem and focus on the branch drain serving that fixture. A blockage confined to a single sink typically builds up in the P-trap or the short run of pipe just past it, where soap scum, paper, and debris collect over time. We inspected the trap and traced the line to confirm the restriction before doing any work.

The Repair

We mechanically cleared the blocked section, flushed the trap, and removed the accumulated buildup that had narrowed the pipe. The sink and its drain assembly were then checked for leaks at every joint, since disturbing an older trap can expose worn washers or corroded connections.

The Result

The affected basin drained fully and freely. We tested every sink in the restroom to confirm the branch line was clear along its whole length and that no water was backing up into adjacent fixtures. For homeowners facing something similar on a smaller scale, we have a guide on how to unclog a bathroom sink.

Drain Cleaning in Phoenix, AZ

Cactus Plumbing and Air provides commercial and residential drain cleaning, plumbing repair, and 24/7 emergency service throughout Phoenix and the surrounding valley. Licensed under ROC 336755 and ROC 336756. Call (480) 933-7732.